A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.
Classification: Copper washers including spring washers not threaded
NSN 5985-01-535-1091
NSN 6685-00-845-5606
NSN 6610-00-495-9053
NSN 5945-00-174-0810
NSN 5925-00-822-6822
NSN 5996-01-054-3226
NSN 6240-01-425-4392
NSN 6145-01-525-3602
NSN 6130-01-459-4552
NSN 5835-00-419-6576
NSN 5960-01-609-6565
NSN 6145-01-144-2374